Dumping truck



L. H. KING DUMPING TRUCK Aug. 16, V1927.

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Aug. 16, 1927. 1,639,092

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UNITED STATES y 1,639,092 PATENT OFFICE.

LANDRETH H. KING, 0F ORANGE, NEW JERSEY, ASSIGNOR T0 KING MEC'HANISM. AND ENGINEERING COMPANY, 0F NEW YORK, N., Y., A CORPORATION 0F NEW YORK.

DUMPING TRUCK.

lApplication :llled November 4, 1921. Serial No. 512,781.

This invention relates to trucks organized for dumping preferably though not necessarily to the rear. It is not material tothe vention as to the motive power of the v hicle to which it is applied, as for example, al driven or power driven; nor is it ma rial as to the character of the roadway to ich the vehicle is adapted, as for example,Q a rough farm road` a highway. for rubber tired wheels, or a railway for flanged steel w eels.

The o ject of this invention is to pro-vide a dump tuck in which the body, supported on rockers, is so balanced that ordinarily when relea ed it will dump its load by gravity anafter dumping will be returned to its normal loading position also by gravity.

A further \bject of the invention is to effect the duming at a considerable distance from the truck, this object being ei'ected by providing the rckers with long radii.

A further object is to rovide means whereby the speed of dumping and of returning to normalposition can be re ulated and whereby the body can be held 1n any position. In connection with this regulating means provision is also made for applying manual power to eii'ect the dumping or returning which may or may not be employed as occasion demands.

A further object is to rovide securing means for maintaining the body in load carrying position and to provide connections by which the same are released fpreviously to the regulating means above re erred to.l As to the objects above recited thejinvention provides means whereby the control of the body may be had by the driver without leaving his seat. l

A. further object is to provide connections between the body and the rockers so that the rockers may be folded toward the ioor of the body and the body converted to and carried at a lower position when the automatic dumping feature is not desired.

A further object is to provide means for su porting the body in its dumping position independently of the rocker zwhereby the rockers are free from the weight of the body and to provide accessible means for folding the rockers beneath the body.

A further object is to provide means for body when lowered from or raised to dumping osition with the rockers folded whereby the ody is suitably positioned upon being converted from the one use to the other.

A further object is to provide for the conversion from a box body to a platform body and for utilizing the sides of the box body as side extensions of the latform.

In the accompanying elght sheets of drawings Which form a art of this specification an embodiment of t e invention 1s shown in connection with a portion of an automobile truck chassis, but it is to be understood that this is for convenience of illustration and that no limitation of the invention is to be inferred therefrom. In these drawings Figure 1 is a side elevation of a dumping truck which embodies this invention and illustrates the same in the upper loading position, `the forward portion with the chauifeurs seat and the power plant being omitted; 7

Fig. 2 is a side elevation showing the same in dumping position;

Fig. 3 is a side elevation showing the body in its lower loading position;

Fig. 4 is a longitudinal section on the lines IV-IV of Figs. 5 to 9;

Fig. 5 is a transverse section on the lines V-V of Figs. 1, 4 and 9, certain details behind the cable frame being omitted;

Fi 6 is a transverse section on the lines VI I of Figs. 1, 4 and 9, the rear door operating mechanism being omitted;

Fig. 7 is a rear elevation showin the body converted to platform form, the ca le frame not being shown;

Fig. 8 is a rear elevation showing the body in the lowered position of Fig. 3 and the rockers folded; and

Fig. 9 is a plan of the truck frame, the lo` cation of the body in relation thereto in either loading position bein indicated in dotted lines and the cable rame being in section on the lines IX-IX of Figs. 1, 4, 5, 6 and 7.

Referring now to the particular construction chosen for illustration, advantage is taken of the parallel inwardly faced channel members 10, 10 and rear connecting member 11 present in an automobile truck frame of usual form. Trackways 12, 12 extending from the lower anges of the side members support a body consisting of a iloor 13, a

rear portions 0I the rockers front plate 14, and side plates 15, 15. The rear of the body comprises two doors 16, 16 hinged to the side plates and overlapping at the middle. These are suitably braced by diagonal cross braces 17, 17 so that they may be secured by a single rearwardly extending latch 18 at the overlapping portions.

This latch, normally maintained in latching position by gravity, is rigidly mounted on a shaft 19, and is moved to unlatching position by a forwardly extending lever 20 located at the side of the body and4 also rigidly mounted on the said shaft. The forward end of the lever engages a cam 21 pivoted to the side of the car body which cam strikes a projection 22 from the truck frame to tri the latch while the body is being tilte thus permitting the doors to open. It will be observed that in completed dum ing position the cam is below and clears t e projection; see Fig. 2. The projection is shown as being pivotally connected with the rear bar of the truck frame so that it may be turned to the position shown in Fig. 8 when not in use if desired.

Depending from the body are rockers consisting of plates. 24, 24 reinforced on the lower edges with curved angle irons 25, 25. The rockers are hinged to the floor of the body and are capable of being folded toward each other, but are normally held parallel by one or more braces 26, 26 between the rockersof any suitable type, being illustrated in the form of transverse plates. The are curved with a point P as the center of curvature which is located above and preferably1 to the rear of the center of gravity G o the rockers and body when not loa ed, and also preferably low enough to be below and forward of the center of gravity g of the rockers and body together with its load. The rockers follow the circle only to the rear of a vertical line -from the center P, and forward of this line are arallel with the floor of the body. The trac ways 12, 12 for the rockers are located on as low a line as ossible so that the radius of curvature of t e rockers may be long without unduly elevating the body and keeping the location of the centers as above defined. In consequence not only is gravity dumping and return rovided for but in dumping the body will e carried rearwardly and will discharge its contents' at a considerable distance from the truck. The rockers are provided each with a notch 27 for engagement with a corresponding corrugation 28 in each of the trackways to iprevent forward and rear sliding of the rockers and body on the trackways. The svstem of Irelatively curved rockers and trackways set out above, which effect a gravity dump and return of the body, embodies yone form gf means whereby the dumping body is caused to move from one position to another.

The trackwa s comprise strips of sheet metal riveted the lower flanges of the side members and extending along the side members for such distance as is required for the rockers. yAt the forward ends the trackways are bent upward to brace and strengthen them and to cooperate with the corrugations just mentioned in reventing forward diplacement of the bo y and rockers, but these portions are narrowed sulliciently to clear the braces when the latter are folded upward as will later be explained.

Mounted on the truck frame at the front of the body is a cable carrier comprising one or more uprights 30, 30. These are plvotally carried on the truck frame by hangers 31, 31 which support a shaft 32 upon which the uprights are-rotatably mounted. This shaft has rigidly attached thereon cabledrums 33, 33 and a brake-drum 34. The ends of the shaft pro'ect beyond the hangers and are squared so t at a crank can be applied thereto for manual operation. Cables 35, 35, the ends of which are attached to their respective drums, lead over sheaves 36, 36 rotatably mounted on a shaft 37 which con nects t e upper ends of the u rights. Brackets 38, 38 are attached to the orward corners of the Abody and clamps 39, 39 pivoted thereto en age the cables. The cable system, set out a ove, through which a manual operation of the body may be effected, embodies another form of means whereby the dumping body is caused to move from one position to another.

A brake-lever 40 through a slack motion link 41, and a lever 42 spring biased as at 43 in brake applying position, expands and closes a brake-strap 43 which surrounds the brake-drum. The brake-lever has a latch handle 44 from which a rod 45 leads to an arc 46 with notches which are enga thereb to hold the lever in any operate position..

ormally the brake-lever is locked 'tively to maintain the brake-strap in tight engagement upon the brake-drum so as to prevent tilting of the body. It is the arrangement above described which comprises what has been referred to in the statement of objects of the invention as 'the regulating' means.

'the means for securing load carrying position whlch it served cooperate with the re ating means comprise positive latches 4 47, spring biased in locking sition. These are rigidly mounted on a r 48 supported between the side members of the truck frame and enga: lugs 49, 49 on the inner sides of the ro e A rod 50 from one ofthe latches connects with a bell-crank 51,-one branch of which has a cam face. This is enga d by the side of the brake-lever during the st part of its forward travel to release the brake and retracts the latches moving the same forthe bod in its wardl sulliciently for all clearance purposes. The rst partof the forward travel of the brake-lever, however, does not release the brake by reason of lost motion provided in the link 41 between the brake-lever and the brake mechanism, so that the latches are withdrawn .anu the brake released at successive positions of the brake-lever.

As has been indicated above this invention provides for the conversion of a truck embodying the same from a dumping truck to a non-dumping truck. This feature of convertihility is broadly, effected by folding the rockers beneath the body and lowering the body from its load carrying position as a dumping truck to a load carrying position directly supported upon the truck frame itself. In this connection compare for exampleFigs. 1 and 3. It is obvious however, that with the rockers folded and the body in its lower load carrying position manual dumping is still possible by means of the cable mechanism above described.

When the body is in its extreme dumping position curved blocks 55, 55 under the door of the body bear at the rear endsof the truck frame, and if the forward end of the bodyis raised slightly above its dum ing posltion b manually turning the sha t 32 of the cabe frame the rockers will be lifted clear of the trackways so that they may be folded u toward the iloor of the body.

` While this folding may be done manual without departure from my invention, have illustrated power means for eiectmg this. Chains 56, 56 lead from the braces between the rockers to a shaft 57, the rear of these leading over a. loose sheave on a shaft 59. One end of the shaft 57 is squared so that a crank may be appllied for turning the shaft and Winding the c ains thereon to fold the braces from between rockers. The braces are cut away above their lower portions to permit of easy folding, and as to the forward brace, to clear the locking lugs 49, 49. When the braces are folded the rockers can be folded.` Chains 58, 58 attached to the rockers lead to the shaft 59 which is also uared for the a plication of a crank to wind these chains t ereon. One of the chains is longer than the other so that the rockers will not start to fold at the same time and will not collide in folding and will overla when folded. Each shaft is provided wit a ratchetuand pawl for holding the braces and rockers respectively in their folded positions. When the rockers are folded out of the way the body can be lowered by the It is desirable that .in this lower load carryingposition the body should be forward of the position to which it would naturally lower if turned on the curved blocks 55, about the rear end of the truck frame as an axis. If it is desired to elfect this automatically theremay be provided a transverse rod carried by brackets 61, 61 depending from the truck frame, and forked arms 62, 62 depending from the door of the body for engagement therewith when the body is in dumping position. These continue 1n engagement so that the rod becomes the airis of movement when the body is turned to its non-dumping position with the rockers folded or returned therefrom. These members also prevent accidental sliding of the body backward or forward on the chassis. While the lowerin is effected by gravity it is to be regulated manually from the shaft 32 throu h the cable mechanism as will be readi y understood. In reconverting to an automatic dumping truck the body is raised to dumping position by means of the cables and the rockers and their braces allowed to unfold under control of their folding mechanism.

The second feature of convertibility referred to in the statement of objects of the invention relates to the conversion of the truck from a box body to a platform bod It will be observed in the specific exainp e of the invention shown when the body .is

in its lower load carrying position, Figs. 3 and 8, the lower portion of the body lies between the truck wheels. This is a common w of truck especially of low tonnage.

'1th such a truck this feature of convertibility is impossible without first raising the body to a supported position above the truck wheels. For this purpose certain other features of my invention afford convenient means. With trucks, however, in which the normal body supports .are hi h and the body projects above and beyond te truck wheels, the convertibility feature now under consideration is applicable to the lower load carrying position of the body and where certain other features of my invention are present also to the upper load carrying position of the bod To egect the conversion from box body to platform body in the specific example shown the side plates of the body are hinged to the floor and are secured to the front plate by removable bolts 65, 65 and at the rear preferabl by a removable tie-rod 66. As this tie` may interfere with the dischar e of the load in dumping when the materia handled is of a character which can not be depended upon to flow freely under it, alternative or auxiliary means are provided. To cooperate with the hinges when the side plates are unfolded to platform sition vertical ribs 67, 67 are provi ed.

These extend below the edges of the side plates when the latter are in box body position and the rear air of them may be conveniently employes for the purpose now in hand. To this end there are provided diagonal braces 68, 68 pivoted to the floor of the burly in line with the said braces which can be moved for engagement therewith and secured thereto by bolts 69, 69. A substantial brac-e is thus afforded to hold the side plates in their box body position. These braces can be unbolted from the vertical ribs and readily turned out of the Way for unfolding the side plates to platform position.

' It is thought that the operation of converting .from box body to platform body and vice versa will be readily understood without further explanation. The braces are specifically shown in Fig. 8. The manner in which the vertical ribs cooperate with the hin es when the side plates are lowered is il ustrated in Fig. 7 wherein they are shown as folding against the under side of the body floor. When the side plates are thus folded down the doors may be detached at their hinges or may be folded over on the side plates as shown in dotted lines in Fig. 7.

The foregoing detailed description has been given for clearness of understanding and no undue limitation should be deduced therefrom, but the ap ended yclaims should be construed as broadly as permissible in view of the prior art.

`What I claim as new and desire to secure by Letters Patent isz- 1. A dumpin truck comprisin a frame embodying trac ways, a dumping ody supported on dependent rockers formed to bear upon the trackways at-points forward of the normal center of' gravity of the rockers and body when loaded, securing means for maintaining the body in. loadcarrying position,

' brake means checking the movement of the body, and means successively releasing the securing means and the brake means.

2. A dumping truck comprising a. frame embodying trackways, a dumping body, rockers for supporting the body on the trackways, the relation of curvature of the rockers and the trackwa s being such that the body when loaded ten sto assume dumping position1 and when empty tends -to assume load-carryingl position, securing means for maintaini t e body 1n load-curr ing position, re atin means for vchoc g movement o the body, and means for releasing the securing means and the regulating means and assuring release of the regulating means subsequently to the release of the securing means, such regulating means-bein operative position at the time of the re ease of the securin means.

3. A dumping tru compris' a frame embodying trac ways, a dumping y supported on dependent rockers formed to bear a -means for releasin upon the trackways at points forward of the normal center of gravity of the rockers and body when loaded, securing means for maintaining the body in load carrying position, a cable carrier pivoted to the frame, a cable carried thereby and connected with the body, a brake for checking movement of the cable, and means for releasing the securing means while the brake is still applied. v

4. A dumpin truck comprisin a frame embodying trac Ways, a dumping ody supported on deppndent rockers formed to bear upon the trac ways at points forward of the normal center of gravity of the rockers and body when loaded, securing means for maintaining the body in load carr ing position, a cable carrier pivoted to the fiame, a cable carried thereby and connected with the body, positive means for effecting movement of the cable, a brake for checking movement of the cable, and means for releasing the securing means while the brake is still applied.

5. A dumping truck comprising a frame embodying trackways, a dumping body, rockers for supporting the bod on the trackways, said roc ers having a 0n radius of curvature whereby dumplng is e ected at a considerable distance from the truck, said rockers being formed to bear upon the trackways at points forward ofthe normal center of gravity of the rockers and body when loaded, securing means for maintaining the body in load car in position, a cable carrier pivoted to t e rame, a. cable carried thereby and connected with the body, a brake 'for checking movement of the cable and the securing means while the brake is still applied.

6. A dumpin truck comprisin a frame embodyingy trac ways, a dumping ody supported on dependent rockers formed to bear upon the trackways at points forward of the normal center of Cgravity of the rockers and body when loade a latch for securing the body in load-carrying osition, a. brake checking the movement o the bod and an operating lever and connections y which the latch is retracted and the brake released at successive positions of the operating lever.

7. A dumping truck comprising a frame embodying trackways, a dumping body, rockers for supporting the body on the trackways movable into and out of supporting position, removable means for maintaining the rockers in supporting position, and means for supkporting t e body independently of the roc ers in dumping position.

8. A dumping truck com rising a frame embodying trackways, a umping body, rockers for sup rting the bod on the trackways mova e into and out o supporting osition, removable means for maintaining t e rockers in supporting position, means for moving the body from load carrying position to dumping position, and means lfor supporting the for su portin the body independently of the roc ers in umpin position.

9. A dumping truc comprisin a frame embodying trackways, a dumping body, rockers for supporting the body on the trackways movable into and out of supporting position, removable 'braces for maintaining the rockers in supporting osition, means for supporting the body in ependently of the rockers in dumping position, and means for withdrawing the braces and for moving the rockers from their supporting position whereby the body may be supported directly on the frame.

10. A dumpin truck coin rising a frame embodying trac ways, a umping body, rockers for supporting the body on the trackways movable into and out of supportingy osition, removable braces for maintaining t e rockers in sup orting osition, means for su porting lthe ody in ependently of the roc rs in dumping position, means for withdrawing the braces and for moving the rockers from their supporting position whereby the body may be supported directly on the frame, and means for controlling the lowering of the body from dumping position to its said position upon the frame.

11. A dumpin truck com rising a frame embodying trac ays, a umping body, rockers for supI rting the body on the trackways mova e into and out of supportingl position, removable braces for maintaining the rockers in su porting position, means for moving the b y from load carrying position to dumping ition, means for supporting the body in ependently of the roc ers in dumping position means for withdrawing the braces and for moving the rockers from their supporting position whereby the body may-be supported directly on the frame, and means for controlling the lowering of the body from dum ing position to lts said position on the rame.

12. A dumpin truck com 'sing a frame embodying trac a s, a umping body, sup orting rockers t erefor dependent from the y and hinged thereto and travelling on the trackways, removable braces for holding the rockers in suplpg-ting position, means y in ependently of the rockers' in its dumping position, shafts carried by the body, connections from the shafts to the braces and rockers, and means for turnin the shafts and thereby withdrawing t e braces from the rockers and folding the rockers from their supporting position.

13. A dumping truck comprisin a frame embodying trackways, a rearwar ly dumping body, supporting rockers therefor dependent from the body and hinged thereto and travellin on the trackways, removable braces for ho ding the rockers 1n su porting position, means or supporting the body independently of the rockers in its dumping position, transverse shafts carried by the body, connections from the shafts to the braces and rockers, and means accessible from thefside of the body for turning the shafts and thereby withdrawing the braces from the rockers and subsequently folding the rockers from their supporting position.

14. A dumping truck comprising a frame embodying trackways, a rearwardly dumping body supporting rockersv therefor dependent rom the body and hinged thereto and travelling on the trackways, removable braces for holding the rockers in supporting position, means for moving the body from load carrying position to dumping position, means for supporting the body independently ofthe rockers in dumping position, transverse shafts carried by the body, connections from the shafts to the braces and rockers, means accessible from the side of the body for turning the shafts and thereby withdrawing the braces from the rockers and subsequently folding the rockers from their supporti position, and means for controlling the owering of the body from dumping position to a load carrying position upon the trame.

15. A dumping truck comprising a frame embodying trac ways, a dumping bod foldable rockers for sup orting the boc7 on the trackwa s, means or controlling the movement of t e body from load ca ing position to dumping position and l,[i'om dumping position to load carrying osition, and automatic means for contro ng the horizontal position of the body on lowering from dumping position with the rockers folded out of supporting position.

16. A dumpin truck comprisinga frame embodying trac ways, a dump' body, foldable rockers for supporting thlgody on the trackwa s, means for controlling the movement o the body from load ca g position to dumpin position and nldin dumping position to oad carrying osition, and automatic means `for shftin t e body forward on loweringsgwith the roc ers folded out of supporting position.

17. A dumpin truck com rising a frame embed ing trac ways, a umpin body, foldabib rockerstfor sup rting the ody on the trackwa s, means or controlling the movement o the body from load car ing position to dumping position and om umping position to oad carrlym' ition and members carried by the rargnepiiid b the body which engage when the body is in dumping position and operates to shift the bod forward on lowering with the rockers folded out of supporting position.

18. A dumpinvtruck comprising a frame embod ingftnac ays, a dum in body, foldab e rockers for supporting he ody on the trackways, means for controlling the llU Vposition to dumping movementl of the body from load ca g position andrrgim dumping position to cad carrying position, and means for establishing a center of movement for the body in dumping position wherebywith the rockers folded out of supporting position the body on lowering will be shifted forward and on being raised will be returned to its original dumping position. c 19. A dumping truck comprising a frame embodying trackways, a rearwardly dumping body, foldable rockers for supporting the body on the trackways, a cable carrier pivoted to the frame, a cable carried thereby connected with and capable for supporting the body in dumping position independently of the rockers, and members carried by the frame and by the body which engage when the body is in dumping position and operate to shift the bod forward on lowering with the rockers fol ed out of supporting position.

20. A dumping truck comprising a frame embodying trackways, a rearwardly dumping body, foldable rockers for supporting the body on the trackways, a cable carrier pivoted to the frame, a cable carried thereby and connected with and capable of supportin the frame in dumping position indepen ently of the rockers, positive means for effecting movement of the cable, a brake for the cable, and means carried by the frame and by the body which engage when the bod is in dumping position and operate to shi the body forward on lowering with the rockers folded out tion.

21. A dumping truck comprisin a frame embodying trackways, 'a rearwa-r y dumpof supporting posiing body, rockers for sup rting the body on the trackways, the rela ion of curvature of the rockers and the vtrackways being such that the body when loaded tends to. aume dumping position and when empty tends t0 assume load carrying position,` removable braces for maintaining the rocker-sin su porting position, means for supporting e body independently of the roc ers in its dumping position, means for withdrawing the braces and` for moving the rockers from their supporting position whereby the body may be supported directly on the frame, means for establishing a center of movement for the body in dumping position whereby with the rockers folded out of supporting position the body on lowering will be shifted forward on ther frame and on being raised will be returned to its original dumping position, securing means -for maintaining the body in load carryin position, a cable carrier ivoted to the gramo, a cable carried there y and connected with the body, a brake for checking movement of the cable, and means for releasing the securing means while the brake is applied.

22. Control means for a dumping body comprising the combination of means whereby t e dumping body is caused to move from one position to another, a latch for securing the body in loading position, a brake for regulating the movement of the body means for releasing the -latch and therea r releasing tlie brake, such brake being in o erative position at the time of release o the latch.

Signed at New York, N. Y., this 3rd day of'November, 1921.

LANDRET-H Hi ifNGs -position to dumping movement of the body from load car'ng position and dm dumping position to ad carrying position, and means for establishing a center of movement for the body in dumping position whereby-with the rockers folded out of snpporting position the body on lowering will be shifted forward and on being raised will be returned to its original dumping position.

19. A. dumping truck comprlsing a frame .embodying trackways, a rearwardly dumping body, foldable rockers for supporting the body on the trackways, a cable carrier pivoted to the frame, a ca le carried thereby connected with and capable for supporting the body in dumping position independently of the rockers, and members carried by the frame and by the body which engage when the body is in dumping position and operate to shift the bod forward on lowering with the rockers fol ed out of supporting position.

20. A. dumping truck comprising a frame embodying trackways, a rearwardly dumping body, foldable rockers for supporting the body on the trackways, a cable carrier pivoted to the frame, a cable carried thereby and connected with and capable of suportin the frame in dumping osition inepen ently of the rockers, positive means for effecting movement of the cable, a brake for the cable, and means carried by the frame and by the body which engage when the bod is in dumping position and operate to shi the body forward on lowering with the rockers folded out of supporting position. Y

21. A dumping truck comprisiig a frame embodying trackways, a rearwar y dumping body, rockers for supporting the body on the trackways, the relation of curvature of the rockers and the trackways being Such that the body when loaded tends to assume dumping position and when empty tends to assume load carrying position, removable braces for maintaining the rockers in supporting position, means for supporting t e body independently of the rockers in its dumping position, means for withdrawing the braces an-d for moving the rockers from their supporting position whereby the body may be supported directly on the frame, means for establishing a center of movement for the body in dumping position whereby with the rockers folded out of supporting position the body on lowering will be shifted forward on the frame and on being raised will be returned to its original dumping position, securing means for maintaining the body in load carrying position, a cable carrier pivoted to the rame, a cable carried there y and connected with the body, a brake for checking movement of the cable, and means for releasing the securing means while the brake is applied.

22. Control means for a dumping body comprising the combination of means whereby the dumping body is caused to move from one position to another, a latch for securing the body in loadingr position, a brake for regulating the movement of the body, means for releasing the latch and thereafter releasing the brake, such brake being in operative position at the time of release of the latch.

Signed at New York, N. Y., this 3rd day of'November, 1921.

LANDRETH H; HLNG? Cortilte of Correction.

Piane No. 1,639,092.

numbered potent requiring correction as following paragraph:

It a to o bow body to entendons of the platform,

Granted `August 16, 1927,

inthe printed specification of the abovefollows: Page 4, after line 33; the

be noted that to the subject-wimof the feature of conversion from a platform, body and for the sides o 'and eatw'es of the the bow body da eide y I .m w m mmy appaaign Sr, No. 199,795, )ledlww 180g-1,997, al o division kenaf;

ma am am ma uam man@ should be md with this comme been lamomo oonformtotherecord'of the caseinthe PatentOee.V

Signetlmd sealed this Qthdo'y of that the Certicate of Correction. Pwnc No. 1,639,092 o Gmnd August 16, 1927,10 LANDRETH H. KING.

` It is hereby certified that error appears in-the printed specification of the abovenumbered pntnt requiring correction as follows: Page 4, after line 33,l ins'ert the following paragraph:

l [t to be noted that claims o 1w subject-matter of the feature of con/version from a boa: body to a platform body and for the sides o the boa: body a.: bide wtefm'om of the platform and sutures of lie zrwewm meohavuhm associated twmbith am made in my appication Sr. No. 199,726, )Wed J-wne18tk, 1927, as a division hemel; Ind thlt the smid Let/tors Patent, should be read with this correction therein that the ltmeml. conform bothemcordof the case in the Patent Ooe.`

4Signdymnd sealed this 4th day of October, A. V1?;11927.

' M. J. MOORE,

[mL-l Acting 00mm of Pm. 

